2561313664030 has 16 divisors (see below), whose sum is σ = 5029488649584. Its totient is φ = 931386786880.

The previous prime is 2561313664009. The next prime is 2561313664031. The reversal of 2561313664030 is 304663131652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561313664031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11642334727 + ... + 11642334946.

It is an arithmetic number, because the mean of its divisors is an integer number (314343040599).

Almost surely, 2^{2561313664030} is an apocalyptic number.

2561313664030 is a deficient number, since it is larger than the sum of its proper divisors (2468174985554).

2561313664030 is a wasteful number, since it uses less digits than its factorization.

2561313664030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23284669691.

The product of its (nonzero) digits is 233280, while the sum is 40.

Adding to 2561313664030 its reverse (304663131652), we get a palindrome (2865976795682).

The spelling of 2561313664030 in words is "two trillion, five hundred sixty-one billion, three hundred thirteen million, six hundred sixty-four thousand, thirty".